Only the last Object is added to the ArrayList

Question

I created a user defined data type and read data from a file. Here are the codes:

Student Class:

package system.data;

public class Student {

private St         


        

Answer 1

create new instance of Student object inside the for loop

like this

for (String item : strList) {
        int x = 0;
        String[] arr = item.split(":");
        Student student = new Student();
        student.setFirstName(arr[0]);
        student.setLastName(arr[1]);
        student.setRegNumber(arr[2]);
        student.setCoursework1Marks(Integer.parseInt(arr[3]));
        student.setCoursework2Marks(Integer.parseInt(arr[4]));
        student.setFinalExamMarks(Integer.parseInt(arr[5]));

        studentDetails.add(student);
    }